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Ohkawa, T.

Paper Title Page
ROAA04 XAL Online Model Enhancements for J-PARC Commissioning and Operation 494
  • H. Ikeda
    Visual Information Center, Inc., Ibaraki-ken
  • M. Ikegami
    JAEA/J-PARC, Tokai-Mura, Naka-Gun, Ibaraki-Ken
  • T. Ohkawa, H. Sako, G. B. Shen
    JAEA, Ibaraki-ken
  • A. Ueno
    JAEA/LINAC, Ibaraki-ken
  • C. K. Allen
    LANL, Los Alamos, New Mexico
  The XAL application development environment has been installed as a part of the control system for the Japan Proton Accelerator Research Complex (J-PARC) in Tokai, Japan. XAL was initially developed at SNS and has been described at length in previous conference proceedings (e.g., Chu et. al. APAC07, Galambos et. al. PAC05, etc.). We outline the upgrades and enhancements to the XAL online model necessary for accurate simulation of the J-PARC linac. For example, we have added permanent magnet quadrupoles and additional space charge capabilities such as off-centered and rotated beams and bending magnets with space charge. In addition significant architectural refactoring was performed in order to incorporate the current, and past, upgrades into a robust framework capable of supporting future control operations. The architecture and design of XAL is as important as its function, as such, we also focus upon the revised architecture and how it supports a component-based, software engineering approach.  
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